Jean Mason has a doppelganger. At least, that's what people tell her. Jean's curiosity quickly gets the better of her, and she visits the market, but sees no one who looks like her. The next day, she goes back to look again. With the aid of a small army of locals, she expands her surveillance. A peculiar collection of drug addicts, scam artists, philanthropists, philosophers and vagrants are eager to contribute to Jean's investigation. But when some of them start disappearing, it becomes apparent that her alleged double has a sinister agenda.